Process for purifying hydrocarbonaceous oils
US4485007A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1982 |
| Grant date | Nov 27, 1984 |
| Priority date | — |
| Expiry date | Jun 15, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G53/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for purifying hydrocarbonaceous oils containing heteroatom sulfur and heteroatom nitrogen compound impurities comprising the steps of: PA0 (1) reacting said hydrocarbonaceous oil with an oxidizing gas containing at least one nitrogen oxide with more than one oxygen atom for each nitrogen atom while maintaining PA1 (a) the molar ratio of the nitrogen oxide to the total of the sulfur heteroatom content and the nitrogen heteroatom content to about 1.5:1 or less, PA1 (b) the reaction time to about one hour or less, PA1 (c) the temperature to about 100.degree. C. or less, and PA1 (d) a conversion of sulfur heteroatom content into gaseous sulfur oxides to about 60% or less on a weight basis; PA0 (2) contacting the oil from step (1) above with PA1 (i) an extracting solvent comprising at least one amine selected from the group consisting of ethylene diamine, monoethanolamine, diethanolamine and mixtures thereof, or a water mixture thereof containing about 50% by weight or less water, and PA1 (ii) extracting solvent comprising formic acid or a water mixture thereof containing about 50% by weight or less water, PA0 with the contacting with (i) and (ii) being sequential and in any o…
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